#1 blunder n. [blooper, bloomer, bungle, pratfall, foul-up, fuckup, flub, botch, boner, boo-boo] an embarrassing mistake. wn
#2 blunder v. [drop the ball, sin, boob, goof] commit a faux pas or a fault or make a serious mistake; "I blundered during the job interview". wn
#3 blunder v. [fumble] make one's way clumsily or blindly; "He fumbled towards the door". wn
#4 blunder v. [blurt out, blurt, blunder out, ejaculate] utter impulsively; "He blurted out the secret"; "He blundered his stupid ideas". wn
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